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Better Gas Furnaces

92.1% AFUE Single Stage With Variable Speed Option

What are the benefits of single stage furnaces when variable speed is added?

  • A single stage furnace is sized to heat your home on the coldest days of the year.

  • It delivers 100% of its heating capacity at all times of operation.

  • Variable speed technology under normal operating conditions ensures constant comfort for the homeowner because the motor will automatically maintain its programmed level of airflow.

  • This constant airflow capability provides a number of important benefits.

  • The ECM system can compensate for poor duct design. Systems with inadequate duct volume can now deliver factory calibrated airflow.

  • Better indoor-air quality can be achieved quietly and inexpensively with the ECM motor because it can be set to run continuously at reduced airflow levels, between heating or cooling cycles.

  • Better air filtration without sacrificing efficiency. In fact, if you run your thermostat in continuous fan mode, your electricity consumption will be reduced from 500 watts to 65 watts over a furnace that has a standard blower.



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